CN214492431U - Swing arm ball round pin assembly - Google Patents
Swing arm ball round pin assembly Download PDFInfo
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- CN214492431U CN214492431U CN202120170237.XU CN202120170237U CN214492431U CN 214492431 U CN214492431 U CN 214492431U CN 202120170237 U CN202120170237 U CN 202120170237U CN 214492431 U CN214492431 U CN 214492431U
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- round pin
- ball bowl
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Abstract
The utility model provides a swing arm ball round pin assembly belongs to chassis technical field. It has solved the technical problem of loose abnormal sound between current ball round pin and the ball bowl. This swing arm ball round pin assembly includes ball seat, ball bowl and ball round pin, the ball bowl is located the ball seat, be equipped with the installation cavity that is used for installing the ball round pin on the ball bowl, the tip of ball round pin is located the installation cavity, its characterized in that, the through-hole of intercommunication installation cavity is seted up to the bottom of ball bowl, set up the deformation groove one that a plurality of and through-hole are linked together along its circumference on the ball bowl, deformation groove one is seted up along the ball seat direction of height. The utility model discloses reduce the spacious abnormal sound of pine between ball round pin and the ball bowl.
Description
Technical Field
The utility model belongs to the technical field of the chassis, concretely relates to swing arm ball round pin assembly.
Background
The swing arm ball pin assembly is one of the common auxiliary parts in the automobile suspension system, takes a common Macpherson suspension system as an example, the lower swing arm is assembled on the auxiliary frame, and the ball pin is assembled and connected with the brake steering knuckle. The lower swing arm mainly plays a role in isolating excitation of a road surface from entering a cab in the whole system, and simultaneously bears impact load of a part of wheels in the process of passing through a bumpy road surface. The impact load generated in the running process is attenuated, and the damage to the rest parts in the suspension system caused by the impact load is avoided.
The components of the swing arm ball pin assembly comprise a swing arm body, a ball pin, a ball head dust cover, a ball bowl, a spring ring, a ball pin seat, a ball pin bottom plate and the like. The circumferential angle of the ball pin around the central axis is 50 degrees, the ball head and the ball bowl are tightly combined in the normal operation process of the lower swing arm assembly, and the ball bowl has a self-lubricating effect and can guarantee the normal rotation action of the ball pin. The main failure mode that the ball round pin produced abnormal sound in preceding swing arm ball round pin assembly is gone and is formed extrusion deformation between ball round pin and the ball bowl when the ball round pin reaches extreme position in assembly or operation process under the long-time abominable operating mode of vehicle to and the ball bowl is at the ball bowl parcel power increase of the ball round pin that the material under the low temperature environment condition warp the result, if the ball round pin continues the swing, can increase the wearing and tearing between ball bowl and the ball round pin, therefore increased the clearance between ball bowl and the ball round pin, lead to the spacious abnormal sound of pine between ball round pin and the ball bowl.
Aiming at the existing ball pin structure, the practical use limit road condition of a user is simulated to carry out bench test, and the test conditions are as follows: swinging the ball pin to the limit position, and simultaneously loading 8.5KN on the ball pin, wherein the pressurizing times are 3 times; through tests, deep indentations are generated on the edge of the ball seat, the whole ball bowl is deformed greatly, and after the ball seat is driven for a long time, a gap is generated between the ball pin and the ball bowl to cause abnormal sound. The test simulates the running of the vehicle under the long-time severe working condition, and the lever action formed when the ball pin reaches the limit position in the assembling or operating process enables the ball pin and the ball bowl to be extruded and deformed, and finally, a gap is formed between the ball pin and the ball bowl to cause the generation of loose abnormal sound.
Disclosure of Invention
The utility model discloses to the above-mentioned problem that prior art exists, provide a swing arm ball round pin assembly, the utility model aims to solve the technical problem that: how to reduce the loose abnormal sound between the ball pin and the ball bowl.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a swing arm ball round pin assembly, includes ball seat, ball bowl and ball round pin, the ball bowl is located the ball seat, be equipped with the installation cavity that is used for installing the ball round pin on the ball bowl, the tip of ball round pin is located the installation cavity, its characterized in that, the through-hole of intercommunication installation cavity is seted up to the bottom of ball bowl, set up the deformation groove one that a plurality of and through-hole are linked together along its circumference on the ball bowl, deformation groove one is seted up along the ball seat direction of height.
When the ball bowl is contracted in a low-temperature environment, the first through hole and the first deformation groove are formed in the ball bowl, so that the wrapping force of the ball bowl on the ball pin can be reduced under the low-temperature environment condition, the abrasion loss between the ball bowl and the ball pin is reduced, the generation of a gap between the ball bowl and the ball pin due to abrasion is reduced, and loose abnormal sound between the ball pin and the ball bowl is reduced; the swing of ball round pin can lead to the tip of ball round pin at the bowl internal rotation, swing extreme position and continue to exert pressure to the pole portion of ball round pin when the ball round pin, then the inner wall of ball bowl bottom can be extruded to the ball round pin that is located the ball bowl, because through-hole and deformation groove one seted up on the ball bowl in this swing arm ball round pin assembly, can comply with the extrusion direction of ball round pin and take place deformation when the ball round pin extrudees bottom the ball bowl when the ball round pin resets, the ball bowl can recover as far as, reduce the pine spacious abnormal sound that forms the clearance and lead to between ball round pin and the ball bowl.
In the swing arm ball pin assembly, the deformation groove I is positioned at the bottom of the ball bowl and penetrates through the inner wall and the outer wall of the ball bowl. Deformation groove one runs through the bottom of ball bowl, the deformability of increase ball bowl bottom that can be further, receives the extrusion direction that can comply with the ball round pin when the ball bowl bottom extrudees and takes place deformation, when the ball round pin resets not to the extrusion of ball bowl bottom, the ball bowl can recover as far as, reduces the pine spacious abnormal sound that forms the clearance and lead to between ball round pin and the ball bowl.
In the swing arm ball pin assembly, the ball bowl is further provided with a plurality of deformation grooves II along the circumferential direction of the ball bowl, the deformation grooves II are arranged along the height direction of the ball seat, and the deformation grooves II are positioned at the top of the ball bowl and penetrate through the top surface of the ball bowl. The second deformation groove can reduce the wrapping force of the top of the ball bowl on the ball pin under the condition of low-temperature environment, so that the abrasion loss between the ball bowl and the ball pin is reduced, the gap between the ball bowl and the ball pin is reduced due to abrasion, and loose abnormal sound between the ball pin and the ball bowl is reduced.
In the swing arm ball pin assembly, the deformation groove II penetrates through the inner wall and the outer wall of the ball bowl. The deformation groove II penetrates through the inner wall and the outer wall of the ball bowl, so that the wrapping force of the ball bowl on the ball pin is further reduced in the low-temperature shrinkage environment, the abrasion loss between the ball bowl and the ball pin is reduced, the generation of a gap caused by abrasion between the ball bowl and the ball pin is reduced, and therefore the looseness and abnormal sound between the ball pin and the ball bowl is reduced.
In the swing arm ball pin assembly, the first deformation grooves and the second deformation grooves are the same in quantity, and the first deformation grooves and the second deformation grooves are arranged in a one-to-one correspondence mode. The first deformation grooves and the second deformation grooves are arranged in a one-to-one correspondence mode, so that when the ball bowl is contracted in a cold environment, the contraction positions of the upper portion of the ball bowl and the lower portion of the ball bowl are kept consistent.
In foretell swing arm ball round pin assembly, be equipped with the opening that can supply the ball round pin to pass on the ball seat, the opening part is equipped with the conical surface of flaring form, still be equipped with on the ball seat and produce the face of supporting of face contact with the ball round pin under ball round pin limit swing position, support to support the face and be located the below of conical surface and adjacent with the conical surface, support to support the contained angle between face and the conical surface and be the obtuse angle. The flaring-shaped conical surface enables the ball pin to rotate and swing, and when the ball pin rotates to the limit position, the abutting surface is in surface contact with the ball pin to attenuate the lever action generated between the ball pin and the ball seat, so that the impact force generated to the ball bowl in the process of swinging the ball pin to the limit position is resisted, and the deformation of the ball bowl generated by the impact force is reduced; when the ball round pin is rotatory when extreme position, support to form the face contact between face and the ball round pin, deformation groove one and the setting of through-hole on the cooperation ball bowl realize the lever effect between decay ball round pin and the ball seat, ball round pin extrusion ball bowl, and the ball bowl can comply with the extrusion direction of ball round pin and take place deformation, when the ball round pin resets not to the extrusion of ball bowl bottom, and the ball bowl can recover as far as, reduces the spacious abnormal sound of pine that forms the clearance and lead to between ball round pin and the ball bowl.
In the swing arm ball pin assembly, the ball bowl is made of polyoxymethylene material. The ball bowl made of the polyoxymethylene material can reduce shrinkage of the ball bowl, reduce the amount of abrasion between the ball bowl and the ball pin in the package of the ball pin by the ball bowl, and reduce the generation of a gap between the ball bowl and the ball pin due to abrasion, thereby reducing loose abnormal sound between the ball pin and the ball bowl.
Compared with the prior art, the utility model has the advantages of it is following:
1. the setting of through-hole, deformation groove one and deformation groove two can reduce the wrapping force of ball bowl to the ball round pin under low temperature environment condition, thus reduces the wearing and tearing volume between ball bowl and the ball round pin, reduces because wearing and tearing lead to the clearance to produce between ball bowl and the ball round pin to reduce the spacious abnormal sound of pine between ball round pin and the ball bowl.
2. The face that supports that sets up on the ball seat makes the ball round pin rotatory when extreme position, supports to form the face contact between face and the ball round pin to the lever action that produces between its ball round pin of decay and the ball seat, thereby resist the ball round pin and swing the impact force that produces the ball bowl to extreme position in-process, reduce the ball bowl and receive the deformation size that the impact force produced, and then reduce the spacious abnormal sound of pine between ball round pin and the ball bowl.
3. The ball bowl structure can effectively reduce the area of contact who forms the parcel with the bulb in the present case, reduces swing and rotation moment among the vehicle driving process, can promote the control performance of vehicle to a certain extent.
Drawings
Fig. 1 is a schematic perspective view of a swing arm ball pin assembly.
Fig. 2 is a schematic sectional structure view of the swing arm ball pin assembly.
Fig. 3 is a schematic perspective view of a ball bowl in a swing arm ball pin assembly.
In the figure, 1, a ball seat; 1a, an opening; 1b, a conical surface; 1c, an abutting surface;
2. a ball bowl; 2a, mounting a cavity; 2b, through holes; 2c, a first deformation groove; 2d, a deformation groove II; 3. and (4) a ball pin.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1 to 3, the swing arm ball pin assembly comprises a ball seat 1, a ball bowl 2 and a ball pin 3, wherein an assembly cavity for assembling the ball bowl 2 is formed in the ball seat 1, an opening 1a communicated with the assembly cavity is formed in the ball seat 1, the opening 1a is located at the top of the assembly cavity, the ball bowl 2 is assembled in the assembly cavity of the ball seat 1, an installation cavity 2a for installing the ball pin 3 is formed in the ball bowl 2, the end part of one end of the ball pin 3 is spherical, the end part of the ball pin 3, which is spherical, is located in the installation cavity 2a, and the ball pin 3 penetrates through the opening 1a and extends out of the ball seat 1.
Specifically, as shown in fig. 2, an opening 1a of the ball seat 1 is provided with a tapered surface 1b in a flaring shape, the diameter of the opening 1a where the tapered surface 1b is located is large at the top and small at the bottom, the ball seat 1 is further provided with an abutting surface 1c which can be in surface contact with the ball pin 3 at the limit swing position of the ball pin 3, the abutting surface 1c is located below the tapered surface 1b and is adjacent to and connected with the tapered surface 1b, and an included angle formed between the abutting surface 1c and the tapered surface 1b is an obtuse angle. Flaring shape's conical surface 1b makes ball round pin 3 can rotate the swing, when ball round pin 3 rotates to extreme position, support and form the face contact between face 1c and the ball round pin 3, with the lever action that produces between its ball round pin 3 of decay and the ball seat 1, thereby resist the ball round pin 3 and swing the impact force to ball bowl 2 production to extreme position in-process, reduce ball bowl 2 and receive the deformation size that the impact force produced, reduce and form the spacious abnormal sound that the clearance leads to between ball round pin 3 and the ball bowl 2.
Further, as shown in fig. 2 and 3, have the clearance that can supply 2 bottoms of ball bowl to outwards deform between 1 bottom inner wall of ball seat and the 2 bottom outer walls of ball bowl, the through-hole 2b of intercommunication installation cavity 2a is seted up to the bottom of ball bowl 2, the deformation groove 2c that a plurality of and through-hole 2b are linked together is seted up along its circumference on the ball bowl 2, deformation groove 2c is located the bottom of ball bowl 2 and runs through the inner wall and the outer wall of ball bowl 2, 1 direction of height sets up along ball seat in deformation groove 2c, deformation groove 2c is rectangular shape. The number of the first deformation grooves 2c can be 5 or 6, and is selected according to actual requirements.
When the ball bowl 2 contracts in a low-temperature environment, due to the through hole 2b and the deformation groove 2c formed in the ball bowl 2, the wrapping force of the ball bowl 2 on the ball pin 3 can be reduced under the low-temperature environment condition, so that the abrasion loss between the ball bowl 2 and the ball pin 3 is reduced, the generation of a gap between the ball bowl 2 and the ball pin 3 due to abrasion is reduced, and the looseness and abnormal sound between the ball pin 3 and the ball bowl 2 is reduced; the swing of the ball pin 3 can cause the end part of the ball pin 3 to rotate in the ball bowl 2, when the ball pin 3 swings to the limit position and continues to apply pressure to the rod part of the ball pin 3, the ball pin 3 positioned in the ball bowl 2 can extrude the inner wall of the bottom end of the ball bowl 2, in the swing arm ball pin assembly, as the abutting surface 1c and the ball pin 3 form surface contact, the lever action between the ball pin 3 and the ball seat 1 is attenuated, and in combination with the through hole 2b and the deformation groove I2 c formed in the ball bowl 2, the bottom of the ball bowl 2 can be deformed along the extrusion direction of the ball pin 3 when being extruded by the ball pin 3, when the ball pin 3 is reset and does not extrude the bottom of the ball bowl 2, the ball bowl 2 can be restored as much as possible, and loose abnormal sound caused by the gap formed between the ball pin 3 and the ball bowl 2 is reduced; secondly, because deformation groove 2c runs through the inner wall and the outer wall of ball bowl 2, so the bottom of ball bowl 2 is separated into the structure of a plurality of lamellas by a plurality of deformation groove 2c, when ball bowl 2 bottom received the extrusion of ball round pin 3, because the bottom of ball bowl 2 presents the structure of multilamellas, so ball round pin 3 only can extrude several or a lamella knot in the ball bowl 2, when reducing ball round pin 3 extrusion ball bowl 2, the scope of ball bowl 2 atress, and then reduce ball bowl 2 owing to receive the area of ball round pin 3 extrusion produced deformation, reduce the loose abnormal sound that forms the clearance and lead to between ball round pin 3 and the ball bowl 2.
As shown in fig. 2 and 3, a plurality of deformation grooves 2d are further formed in the ball bowl 2 along the circumferential direction of the ball bowl, the deformation grooves 2d are arranged along the height direction of the ball seat 1, the deformation grooves 2d are located at the top of the ball bowl 2 and penetrate through the top surface of the ball bowl 2, and the deformation grooves 2d further penetrate through the inner wall and the outer wall of the ball bowl 2. The second deformation groove 2d is formed to reduce the wrapping force of the top of the ball bowl 2 on the ball pin 3 under the condition of low-temperature environment, so that the abrasion loss between the ball bowl 2 and the ball pin 3 is reduced, the gap between the ball bowl 2 and the ball pin 3 caused by abrasion is reduced, and therefore the loose abnormal sound between the ball pin 3 and the ball bowl 2 is reduced.
As shown in fig. 2 and 3, the first deformation groove 2c and the second deformation groove 2d are the same in number, the first deformation grooves 2c and the second deformation grooves 2d are arranged in a one-to-one correspondence manner, and the first deformation grooves 2c and the second deformation grooves 2d are arranged in a one-to-one correspondence manner, so that when the ball bowl 2 is contracted in a cold state, the upper part of the ball bowl 2 and the lower part of the ball bowl 2 are kept consistent in contraction position.
Example two
The present embodiment is substantially the same as the above-mentioned embodiment, and the difference is that in the present embodiment, neither the first deformation groove 2c nor the second deformation groove 2d penetrates through the inner wall or the outer wall of the ball bowl 2, and compared with the first embodiment, the deformation performance of the ball bowl 2 is reduced, but the wrapping force of the ball bowl 2 on the end portion of the ball pin 3 can also be reduced, so that the abrasion loss between the ball bowl 2 and the ball pin 3 is reduced, and the generation of a gap between the ball bowl 2 and the ball pin 3 due to abrasion is reduced, thereby reducing the loose abnormal sound between the ball pin 3 and the ball bowl 2.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms ball seat, opening, tapered surface and abutment surface are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (7)
1. The utility model provides a swing arm ball round pin assembly, includes ball seat (1), ball bowl (2) and ball round pin (3), ball bowl (2) are located ball seat (1), be equipped with installation cavity (2a) that are used for installing ball round pin (3) on ball bowl (2), the tip of ball round pin (3) is located installation cavity (2a), its characterized in that, through-hole (2b) of intercommunication installation cavity (2a) are seted up to the bottom of ball bowl (2), set up deformation groove (2c) that a plurality of and through-hole (2b) are linked together along its circumference on ball bowl (2), deformation groove (2c) are seted up along ball seat (1) direction of height.
2. The swing arm ball pin assembly of claim 1, wherein the deformation groove one (2c) is located at the bottom of the ball bowl (2) and penetrates through the inner wall and the outer wall of the ball bowl (2).
3. The swing arm ball pin assembly of claim 2, wherein the ball bowl (2) is further provided with a plurality of deformation grooves II (2d) along the circumferential direction, the deformation grooves II (2d) are arranged along the height direction of the ball seat (1), and the deformation grooves II (2d) are positioned at the top of the ball bowl (2) and penetrate through the top surface of the ball bowl (2).
4. The swing arm ball pin assembly of claim 3, wherein the deformation groove two (2d) penetrates through the inner wall and the outer wall of the ball bowl (2).
5. The swing arm ball pin assembly according to claim 3 or 4, wherein the number of the first deformation grooves (2c) is the same as that of the second deformation grooves (2d), and the plurality of the first deformation grooves (2c) and the plurality of the second deformation grooves (2d) are arranged in a one-to-one correspondence manner.
6. The swing arm ball pin assembly according to claim 1 or 2 or 3 or 4, wherein the ball seat (1) is provided with an opening (1a) through which the ball pin (3) can pass, the opening (1a) is provided with a flaring tapered surface (1b), the ball seat (1) is further provided with an abutting surface (1c) which can be in surface contact with the ball pin (3) at the limit swing position of the ball pin (3), the abutting surface (1c) is positioned below the tapered surface (1b) and adjacent to the tapered surface (1b), and the included angle between the abutting surface (1c) and the tapered surface (1b) is an obtuse angle.
7. The swing arm ball pin assembly according to claim 1 or 2 or 3 or 4, characterized in that the ball bowl (2) is made of polyoxymethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120170237.XU CN214492431U (en) | 2021-01-21 | 2021-01-21 | Swing arm ball round pin assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120170237.XU CN214492431U (en) | 2021-01-21 | 2021-01-21 | Swing arm ball round pin assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214492431U true CN214492431U (en) | 2021-10-26 |
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ID=78216224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120170237.XU Active CN214492431U (en) | 2021-01-21 | 2021-01-21 | Swing arm ball round pin assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214492431U (en) |
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2021
- 2021-01-21 CN CN202120170237.XU patent/CN214492431U/en active Active
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